hypersomnia
Sign in to saveAlso known as primary recurrent hypersomnia, persistent disorder of initiating or maintaining wakefulness, recurrent hypersomnia, hypersomnolence disorder, Disorders of Excessive Somnolence
Hypersomnia is a neurological disorder of excessive time spent sleeping or excessive sleepiness. It can have many possible causes (such as seasonal affective disorder) and can cause distress and problems with functioning. In the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), hypersomnolence, of which there are several subtypes, appears under sleep-wake disorders.
Key facts
- Medical condition (new).image
- "Plenty of sleep keeps him on the job" - NARA - 514792.jpg
- Medical condition (new).caption
- World War II poster issued by the US government
- Medical condition (new).field
- Psychiatry, neurology, sleep medicine
- Medical condition (new).synonyms
- Hypersomnolence
via Wikipedia infobox
Research
11,030 papersvia PubMed
Wikidata facts
- Image
- Sleeping while studying.JPG
Show 5 more facts
- ICPC 2 ID
- P06
- exact match
- purl.obolibrary.org/obo/SYMP_0000582
- ICD-9-CM
- 780.54
- NCI Thesaurus ID
- C78346
- Commons category
- Hypersomnia
via Wikidata · CC0
~19 min read
Article
20 sectionsContents
- Symptoms
- Diagnosis
- Differential diagnosis
- Primary hypersomnias
- Primary hypersomnia mimics
- Secondary hypersomnias
- Posttraumatic hypersomnias
- Recurrent hypersomnias
- Assessment tools
- Polysomnography
- Multiple sleep latency test (MSLT)
- Actigraphy
- The maintenance of wakefulness test (MWT)
- The Stanford sleepiness scale (SSS)
- The Epworth sleepiness scale (ESS)
- Treatment
- Epidemiology
- See also
- References
- External links
Hypersomnia is a neurological disorder of excessive time spent sleeping or excessive sleepiness. It can have many possible causes (such as seasonal affective disorder) and can cause distress and problems with functioning. In the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), hypersomnolence, of which there are several subtypes, appears under sleep-wake disorders.
Hypersomnia is a pathological state characterized by a lack of alertness during the waking episodes of the day. It is not to be confused with fatigue, which is a normal physiological state. Daytime sleepiness appears most commonly during situations where little interaction is needed.